如何从参数化泛型类型中获取非参数化类型？

Question

有没有办法获取参数化泛型类型并获得相应的非参数化类型？

Type parameterizedFoo = typeof(Foo<double>);
Type unparameterizedFoo = parameterizedFoo.TypeWithoutParameters; // == typeof(Foo<>);

Answer 1

Type unparameterizedFoo = parameterizedFoo.GetGenericTypeDefinition();

Answer 2

您正在寻找GetGenericTypeDefinition方法。

Type parameterizedFoo = typeof(Foo<double>);
Type unparameterizedFoo = parameterizedFoo.GetGenericTypeDefinition();
Console.WriteLine(unparameterizedFoo == typeof(Foo<>)); // True